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Java Writer close() Method with Example

Writer Class close() method: Here, we are going to learn about the close() method of Writer Class with its syntax and example.
Submitted by Preeti Jain, on April 27, 2020

Writer Class close() method

• close() method is available in java.io package.
• close() method is used to the first flush and then close this Writer stream. When we call any of its methods after closing the stream will result an exception.
• close() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• close() method may throw an exception at the time of closing the stream.
  IOException: This exception may throw when getting any input/output error while performing.

Syntax:

    public abstract void close();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is void, it returns nothing.

Example:

// Java program to demonstrate the example 
// of void close() method of Writer

import java.io.*;

public class CloseOfWriter {
    public static void main(String[] args) throws Exception {
        Writer w_stm = null;
        String str = "Java World!!!";

        try {
            // Instantiates Writer
            w_stm = new PrintWriter(System.out);

            // when we call write() method is to write
            // the string to the stream Writer
            w_stm.write(str);
            w_stm.flush();

            System.out.println();

            // By using close() method is to
            // close the stream
            System.out.println("Writer Stream Closed");
            w_stm.close();
        } catch (Exception ex) {
            System.out.println(ex.toString());
        } finally {
            // with the help of this block is to
            // free all necessary resources linked
            // with the stream
            if (w_stm != null) {
                w_stm.close();
            }
        }
    }
}

Output

Java World!!!
Writer Stream Closed